Sökning: "Kalevi Huhtala"

Hittade 4 avhandlingar innehållade orden Kalevi Huhtala.

  1. 1. On Fluid Power Pump and Motor Design : Tools for Noise Reduction

    Författare :Liselott Ericson; Jan-Ove Palmberg; Kalevi Huhtala; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Noise and vibration are two of the main drawbacks with fluid power  systems. The increasing requirements concerning working environment as well as machines' impact on surroundings put components and systems to harder tests. The surrounding machines, e.g. LÄS MER

  3. 2. On Motion Control of Linear Incremental Hydraulic Actuators

    Författare :Martin Hochwallner; Petter Krus; Kalevi Huhtala; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linear Incremental Hydraulic Actuator; novel actuator; linear hydraulic actuator; tracking problem; hydraulic servo system; digital fluid power;

    Sammanfattning : Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydraulic actuator. LÄS MER

  4. 3. Prognostics and Health Management of Engineering Systems for Operation and Maintenance Optimisation

    Författare :Madhav Mishra; Matti Rantatalo; Kai Goebel; Kalevi Huhtala; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Prognostics and Health Management PHM ; Diagnostics; Prognostics; Bayesian; Hierarchical; L10; Prediction; Bearing; Li-ion battery; RUL; Particle filter; Model-based; Data-driven; Algorithms; Railway track geometry; Operation and Maintenance Engineering; Drift och underhållsteknik;

    Sammanfattning : Prognostics and health management (PHM) is an engineering discipline that aims to maintain system behaviour and function and ensure mission success, safety and effectiveness. Prognostics is defined as the estimation of remaining useful life. LÄS MER

  5. 4. Machinery diagnostic techniques for maintenance optimization

    Författare :Juhamatti Saari; Jan Lundberg; Kalevi Huhtala; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : One of the future challenges of machinery diagnostics and prognosticsis to prepare for the Internet of Things (IoT), where it is possible to change and improve existing approaches drastically. An intensifying application of the IoT will increase the use of embedded sensors and, therefore, create a demand for diagnostic tools where manual workis minimized and is mainly handled by smart algorithms. LÄS MER